What is a memory manager

Cell phone memory full? Clean up and speed up Android - that's how it works

Dennis Steimels, Verena Ottmann, Sandra Ohse & Andreas Hitzig

When the phone's memory is full, it's time to clean up Android. Nice side effect: the cell phone is fast again! We'll explain how to do it.

Many files in the cell phone memory such as photos, videos, music, documents, downloads and of course app data take up a lot of storage space. The result: a slow smartphone! The following tips will help you to delete unnecessary content from your smartphone or tablet so that you can finally save new content or install apps and use your mobile phone without stuttering.

Status quo: get an overview

There are various “adjusting screws” under Android that you can turn to purify your system. This mainly includes the memory, but also the WiFi menu and the synchronization settings, which are responsible for the reloaded data. But first you need to find out what garbage has actually accumulated on your android.

EnlargeThe "Android Assistant" monitors your android and offers various optimization options.

Smartphone diagnosis: An app that gives you a particularly good overview of the status of your Android mobile device is the “Android Assistant”. After starting, the app shows you an overview of the CPU and RAM usage, the battery level, the temperature and the voltage on the "Monitoring" tab. The filling level of the internal memory and - if available - the memory card are also shown graphically. A tap on the bar symbol next to it reveals a detailed view, broken down by file type. In the main view "Monitoring" you will also find various optimization aids such as "Clear cache", "Uninstall app" and "Clean system". The "Processes" tab shows you all open tasks including CPU and memory usage. Under “Tools” you will find shortcuts for Bluetooth, WLAN, GPS & Co., everything that the Google shortcuts in the opened notification bar also offer.

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Alternative storage app: "Files Go"

The Google “Files Go” app also provides a good overview. Google itself describes the app as an intelligent storage manager that helps you free up storage space on your device.

In order for the app to perform its service successfully, it needs authorization to analyze your usage data. You can find this in the security settings under "Apps with usage data access". Grant the "Files Go" app access to the usage data.

After the first start, the overview shows how much storage space is currently being used on your smartphone and how much is still available. Based on the analysis of the usage data, "Files Go" shows you where you can make improvements. These are divided into categories: "Media with low resolution" shows you primarily compressed images from messaging services such as Whatsapp. "Duplicate files" usually come about through multiple downloads or parallel storage in a cloud app such as Dropbox. Messaging services such as Whatsapp also have their own section for the downloaded files. The "Unused apps" view provides you with an initial overview of rarely used or not used apps. Often, quite a lot of downloaded files collect on a device, which "Files Go" determines via the download folder. You can clear the cache of the individual apps via the temporary app files. Last but not least, the application also gives you an overview of large files. These are often video films on smartphones that were shot with the integrated camera.

"Files Go" always offers you two options for editing the individual categories: Either you manually select the files and apps that really should be deleted - or you trust the "Files Go" suggestion and clean up without further checking . To avoid accidentally removing too much data or apps from your smartphone, we recommend that you always check the objects that “Files Go” is supposed to delete beforehand. In the first step you have optimized the system memory of your smartphone. In the next step, we take a look at the main memory of your device.

1) Storage cleaning

Basic cleaning: find app residue and large files

A favorite app of Android users, the “Clean Master”, is recommended for an initial thorough cleaning. The application is easy to understand due to the simple structure. On the start page you can see in percentage points to what extent the internal memory and the RAM memory are used. You can view "garbage files" here and use "Clean up garbage" to relieve the memory in some cases significantly.

EnlargeThe “Clean Master” app is easy to use and easy to understand - but still very effective.

After scanning, the "Clean Master" displays the data size to be deleted. If you want to go further in depth, open the "Tools" in the lower bar. There you will find the option "Clean up memory". If you tap it, the “Clean Master” will scan your content and show you, for example, particularly large files, videos, rarely played music or duplicate photos, which you can then delete. Here you will also find data residue from deleted apps that are no longer needed. Basically, however, caution is advised here, since this sweeping blow often also affects files that are not duplicated, but only similar, and the step cannot be reversed. After all, the “Clean Master” shows you more detailed information on each file, so that you can better assess whether you should delete it or not.

The aforementioned “Android Assistant” also offers a similar function, here called “Clean up the system”. Divided according to file type and size, the app gives you an overview of all deletion candidates.

EnlargeThe maid already cleans up thoroughly in the free version - you won't find a speck of dust in the provisional version.

A powerful alternative to “Android Assistant” and “Clean Master” is the “SD Maid”, which offers more functions in the pro version for just under 3 euros. The program is called "Maid for Android", matching the app icon. In order to use the full functionality of the program, however, root rights are required.

The pro version of the app offers a total of seven functions: app control, corpse finder, system cleaner, app cleaner, duplicates, memory analysis and databases, all of which deal with the subject of "cleaning" in different ways. Swipe your finger from left to right or tap the menu button in the top left (three horizontal lines), you will see all the available services of the app.

The “corpse finder” deals, for example, with the deletion of garbage from apps that have already been uninstalled. The app also shows the largest collections of data in the memory at a glance under "Memory analysis", which you can remove immediately if you no longer need them.

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Cache: Clear the app cache